EP0639716A1 - Device for sewage pumping stations - Google Patents

Device for sewage pumping stations Download PDF

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Publication number
EP0639716A1
EP0639716A1 EP94850060A EP94850060A EP0639716A1 EP 0639716 A1 EP0639716 A1 EP 0639716A1 EP 94850060 A EP94850060 A EP 94850060A EP 94850060 A EP94850060 A EP 94850060A EP 0639716 A1 EP0639716 A1 EP 0639716A1
Authority
EP
European Patent Office
Prior art keywords
pump
pumps
shunt lead
valve
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94850060A
Other languages
German (de)
English (en)
French (fr)
Inventor
Göran Björkander
Peter Stahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xylem Water Solutions AB
Original Assignee
ITT Flygt AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ITT Flygt AB filed Critical ITT Flygt AB
Publication of EP0639716A1 publication Critical patent/EP0639716A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel

Definitions

  • a Device to diminish the risk for clogging of pumps for sewage water and other liquids containing contaminations A Device to diminish the risk for clogging of pumps for sewage water and other liquids containing contaminations.
  • the invention concerns a device to diminish the risk for clogging of the hydraulic parts in pump stations for sewage water and other heavily polluted liquids.
  • a pump station for sewage water comprises a tank with inlets and outlets, that latter(s) from one or several pumps.
  • the sewage water always contains a lot of pollutions such as sludge and elongated objects such as rags which easily clog pumps and pipes.
  • the hydraulic parts of the pumps are designed with large throughlets and the inlets sometimes being provided with cutting means which cut the elongated objects into pieces.
  • An example is shown in the Swedish Patent No 820 5774-6.
  • Another method which is used to take away elongated objects from the pump inlet is to operate the pump in reverse a short time before each pump start. In this way rags being stuck to the impeller may be flushed away.
  • 1 stands for a pump station with inlet 2 and outlet 3 for sewage water.
  • 4 and 5 stand for submersible pumps with inlet 6 and 7 respectively and pressure pipes 8 and 9 respectively 10 stands for a shunt lead having a valve arrangement 11.
  • 12 and 13 finally stand for non-return valves.
  • the device according to the invention operates in the following way.
  • the valve 11 may, as previously mentioned, be controlled in various ways, manually or automatically, independant of time, amount of flow etc.
  • the invention also includes the use of three or more pump units in the same or adjacent pump stations being provided with shunt leads in the way described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP94850060A 1993-04-27 1994-04-20 Device for sewage pumping stations Withdrawn EP0639716A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9301403 1993-04-27
SE9301403A SE501194C2 (sv) 1993-04-27 1993-04-27 Anordning för att minska risken för igensättning av pumpar för avloppsvatten och andra vätskor innehållande fasta föroreningar

Publications (1)

Publication Number Publication Date
EP0639716A1 true EP0639716A1 (en) 1995-02-22

Family

ID=20389720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94850060A Withdrawn EP0639716A1 (en) 1993-04-27 1994-04-20 Device for sewage pumping stations

Country Status (3)

Country Link
EP (1) EP0639716A1 (enrdf_load_html_response)
NO (1) NO941513L (enrdf_load_html_response)
SE (1) SE501194C2 (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013159242A1 (es) * 2012-04-26 2013-10-31 Abbruzzese Permutt Gino Rocco Sistema y procedimiento de limpieza para motobombas sumergibles cubiertas con camisas de aspiración, dispuestas en forma horizontal o vertical
CN108026711A (zh) * 2015-07-30 2018-05-11 爱河溪工程商业有限公司 水下开槽设备和泵送设备
CN111706527A (zh) * 2020-05-08 2020-09-25 湖南都市职业学院 浅层地能地下水与泥浆自动分离系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415769A (en) * 1922-02-17 1922-05-09 Beddoes Hubert Pumping system
US2238597A (en) * 1939-08-24 1941-04-15 Chicago Pump Co Pumping apparatus
JPS5746086A (en) * 1980-09-03 1982-03-16 Hitachi Ltd Operation of sewage pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415769A (en) * 1922-02-17 1922-05-09 Beddoes Hubert Pumping system
US2238597A (en) * 1939-08-24 1941-04-15 Chicago Pump Co Pumping apparatus
JPS5746086A (en) * 1980-09-03 1982-03-16 Hitachi Ltd Operation of sewage pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 117 (M - 139)<995> 30 June 1982 (1982-06-30) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013159242A1 (es) * 2012-04-26 2013-10-31 Abbruzzese Permutt Gino Rocco Sistema y procedimiento de limpieza para motobombas sumergibles cubiertas con camisas de aspiración, dispuestas en forma horizontal o vertical
US10344762B2 (en) 2012-04-26 2019-07-09 Gino Rocco ABBRUZZESE PERMUTT System and method for cleaning submersible motor pumps covered with suction sleeves and disposed horizontally or vertically
CN108026711A (zh) * 2015-07-30 2018-05-11 爱河溪工程商业有限公司 水下开槽设备和泵送设备
CN108026711B (zh) * 2015-07-30 2021-05-14 皇家Ihc有限公司 水下开槽设备和泵送设备
CN111706527A (zh) * 2020-05-08 2020-09-25 湖南都市职业学院 浅层地能地下水与泥浆自动分离系统
CN111706527B (zh) * 2020-05-08 2021-08-17 湖南都市职业学院 浅层地能地下水与泥浆自动分离系统

Also Published As

Publication number Publication date
SE501194C2 (sv) 1994-12-05
SE9301403L (sv) 1994-10-28
NO941513D0 (enrdf_load_html_response) 1994-04-26
SE9301403D0 (sv) 1993-04-27
NO941513L (no) 1994-10-28

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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